slow rotating ships engine MAN B&W take a look inside the rotating engine mv Nassauborg
Пікірлер: 84
@snownd6758 жыл бұрын
I feel like i'm watching a horror movie intro
@graemepark57388 жыл бұрын
Large Diesels like this use Compresses Air start - not a starting motor. They have a turning gear to rotate the engine for set up and repair, but this only turns it very slowly. They have a "slow turn" feature that puts reduced compressed air into the cylinders to rotate the engine for the first start to clear any water and spread the cylinder lubrication. To start the engine , high pressure air (30 bar ) is injected into each cylinder in turn to get the engine moving at speed , then the fuel is injected. It is a 2 stroke engine, turbocharged , about 800 mm bore and will have a 3000 piston stroke - turning at maximum 77 Rpm at maximum continious rating - MCR. When the main lube oil pumps are running, there is oil flowing from the crankshaft bearings, the cross head guides and the crossheads - it rains oil in the crankcase. I spent 30 years working on engines like this and it pains me to think someone says a "starter motor" gets the big buggers moving. No way.
@wilsjane6 жыл бұрын
The 'starter motor' part really amused me. I had a mental image of the captain up on the bridge searching through his pockets for the ignition key. LOL.
@sailorman95953 жыл бұрын
Are you a marine C/E?
@sailorman95953 жыл бұрын
@@wilsjane maybe the chief engineer in the engine room and not the captain🤣🤣🤣🤣
@scgamer24428 жыл бұрын
I would be scared as hell being in that engine while it's running!
@scgamer24428 жыл бұрын
Andrew Armstrong well yeah. Sure...
@stephencarey50748 жыл бұрын
+Tri-County Electronics There's no way you can step inside the engine when it's running! For a start, it's a flying miasma of oil droplets when running so even a Go-Pro stuck in there wouldn't see much, and you certainly wouldn't risk having a lamp in there. The video showing the scavenge ports is also not taken whilst running - all sorts of crap is flying around the scavenge ports when the engine is running. It seems to be on the turning gear and they've speeded up the video in the latter stages. I worked inside these things for 18 years, but only moved them on the turning gear whilst inside, and it's a lot slower than the video shows. The guy taking indicator cards is no expert either...
@Nupetiet7 жыл бұрын
Well...there was a guy who got trapped in the scav box without anybody knowing he was in there before departure. He...was not OK.
@zackarylong59346 жыл бұрын
Spencer Clements , it aint running this idiot just wants to put up retarded videos
@stephencarey50747 жыл бұрын
That's the engine turning on turning gear speeded up. The noise is from a running engine superimposed. No one would run an engine with no lube oil on - in fact the engine won't start unless there is lub oil pressure, and in the crankcase it flies around all over the place. Trust me, I have spent 18 years at sea on these engines. Incidentally the guy with the little rotating drum is taking "indicator cards" to work out the power output of the engine per cylinder.
@johnmalz66846 жыл бұрын
Stephen Carey whats max. rpm?
@GraemeSPa Жыл бұрын
You are correct. This is timelapse and speeded up. The camshaft space and crankcase are like a waterfall of oil when running. I have had perspex doors made to see a problem cam in action at full sea speed and it gets pretty messy in there.
@UQRXD Жыл бұрын
From rocks in the ground this engine was made.
@terencehawkes39338 жыл бұрын
At the beginning of the vdeo, the engine is actually running at full speed. This part of the video was taken using a strobe light which makes it look as if the engine is turning slow. Every once in a while you can see an extra flash or two and some very fast motion.
@hamcurtains4207 жыл бұрын
Terence Hawkes this is the proper answer. I don't get how people can't see this and believe that this is the actual speed of the engine.
@codyjohnson19828 жыл бұрын
Wtf. That's trippy. Mesmerizing almost to see the inside of that thing.
@physicsabhishek7 жыл бұрын
the beauty of MAN B&W MC series. I love ME series though
@johnlucas20378 жыл бұрын
I like seeing the indicator at work.
@sailorman95953 жыл бұрын
Beautiful 2 stroke diesel engine
@BadAndUgly8 жыл бұрын
There is a video somewhere showing actual footage from inside the intake ports at the base of the cylinders when the engine is running. Just can't find it though..
@sc0tte1-4168 жыл бұрын
I'd love to see that video if you found it..
@Creeperboy0994 жыл бұрын
It’s a Detroit diesel isn’t it?
@user-uo1se2hb2v6 жыл бұрын
Хорошее видео для ознакомления с устройством 2-х тактного крейцкопфного двигателя. Но это снято на новой не работающей машине, при проворачивании её валоповоротным устройством ( нет нагара на поршне, масло не поступает на подшипники, нет проскока газов при рабочем цикле). Устройство для снятия индикаторных диаграмм ( майгак) не должен работать так долго. Диаграмма снимается только за один цикл, потому- что при многоцикловой съёмке диаграмма будет размытая и не пригодная для обсчета планиметром. Я отработал 8 лет на МАН K9Z 60/105E .
@salemcripple8 жыл бұрын
this was obviously a freewheeling engine (ie NOT under power) and then sped up to 15-20 RPMs to simulate it actually running.
@sailorman95953 жыл бұрын
Its upon blow off before starting
@phatrides2220008 жыл бұрын
i don't believe its running, seems like it on a starter or turning gear.
@phatrides2220008 жыл бұрын
Andrew Armstrong wow, really? Thats impressive.
@philno8 жыл бұрын
+Andrew Armstrong so given its 4-5 seconds per revolutions, i can only surmise this engine was not running,... also its clearly a two stroke diesel, given by the ports in the cylinder, this engine would not run with the crank case open, no air pressure !!
@bitsnpieces118 жыл бұрын
+phil no It has a turbo/super-charger that blows directly into the ports. No compression in crankcase.
@philno8 жыл бұрын
huh, that i didnt know !!
@GraemeSPa8 жыл бұрын
its a crosshead scavenged engine with the connecting rod running through a scraper box. The turbochargers blow air through coolers into the scavenge space and no air enters the crankcase. 0:42 shows the scavenge space and scav ports as the piston rises on the compression stroke.. I know - I've been inside these engines more than enough. I wouldn't put MY GoPro inside an engine!
@doxland12 жыл бұрын
Very nice indeed. I wish I had been able to take indicator cards.
@masterkey36677 жыл бұрын
its on standby where the electrical enegines war up the gears and oil
@carmadme6 жыл бұрын
Fairly sure that cam is bigger than my car
@badboy23165 жыл бұрын
So smooth
@thisman19067 жыл бұрын
Lol nos sound does not mean silent lol
@ganesanmuralidharan67128 жыл бұрын
worth watching
@francoho560610 жыл бұрын
It is a Hudong made MC engine, from video see the fuel pump's size and indicator looks this is a 42 or 50MC isn't it?
@StrokerAce39838 жыл бұрын
Those big ass marine engines have hatches for each cylinder so they can inspect for ware and or do maintenance. It would be impossible for a person to be standing in there if that engine was running at speed. They are rotating that engine slowly right now. Im just guessing but i would say that engine at speed would be turning around 600-800 RPM.
@johnhili86648 жыл бұрын
+Stroker Ace That engine the fastest it can go in an emergency is 120 RPM I know what I am saying as I have worked for years on those type of engines!!
@sc0tte1-4168 жыл бұрын
+John Hili Wow that's crazy. I'm having a hard time wrapping my head around how an engine would even be able to run that slow with combustion and all.
@Nupetiet7 жыл бұрын
Because it's immensely heavy. The torque is monstrous.
@DennisSantos Жыл бұрын
Shiny.
@mohit220012 жыл бұрын
nic video sir thanx fr uploading such video ..do u hav some video on ship would lik to see cn u upload it
@RIPPERTON4 жыл бұрын
Long Duration cam lobe. Is the camshaft turning at half crank speed even though its a 2 stroke ?
@WifeBTR1238 жыл бұрын
Saweeet video!
@nolimit80868 жыл бұрын
Will this fit my honda?
@k.c.lejeune66137 жыл бұрын
No Limit Enough with the over used honda bullshit.
@wilsjane6 жыл бұрын
You would need to melt down about 1000 Honda's to get enough metal to build the engine. LOL.
@gregorykemi88986 жыл бұрын
So when will part 2 get online?
@25musicmaker8 жыл бұрын
Dat het "banaantje" nog steeds wordt gemaakt.
@waelelshemy92667 жыл бұрын
فيديو ممتاز مجهود رائع
@couchetard44143 жыл бұрын
The pressure volume graph spinning tingny, its a old version of this tool
@AltonOgborn7 жыл бұрын
Doesn't the force generated by the propeller against the shaft need to be directed to some sort of a thrust bearing?
@Nupetiet7 жыл бұрын
Yes.
@eloyex8 жыл бұрын
three you have DA ROD !!!!!!!!!!!
@hrvojeboric76326 жыл бұрын
Bolesno
@appraised70907 жыл бұрын
Silent running or volume muted?
@zackarylong59346 жыл бұрын
think i just got dumber, no wait it was just the video
@chrisyboy6668 жыл бұрын
Not what I would class as rigged for silent running we do it differently in the RN I suppose